Wow, after an episode like that, you'd think we'd only have one episode left, not two! Hard to imagine would could possibly happen next. Although with Walt leaving town, it seems pretty likely the next episode will focus heavily on Jesse's current situation, with him trying to escape from Todd somehow.
And count me as another one who didn't realize (until I read some recaps afterward) the true purpose behind that phone call to Skyler at the end. I just thought Walt was lashing out in anger and being unnecessarily cruel, but it should have been obvious what was really going on there.